<template>
  <div class="app-container">
    <!-- 搜索表单 -->
    <el-form
        :model="queryParams"
        ref="queryRef"
        :inline="true"
        v-show="showSearch"
        label-width="68px"
    >
      <el-form-item label="品牌名称" prop="name">
        <el-input
            v-model="queryParams.name"
            placeholder="请输入品牌名称"
            clearable
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery"
        >搜索
        </el-button
        >
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 功能按钮栏 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd"
                   v-hasPermi="['product:brand:add']"
        >新增
        </el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['product:brand:edit']"
        >修改
        </el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['product:brand:remove']"
        >删除
        </el-button
        >
      </el-col>
      <right-toolbar
          v-model:showSearch="showSearch"
          @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <!-- 数据展示表格 -->
    <el-table
        v-loading="loading"
        :data="brandList"
        @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="品牌名称" prop="name" width="200"/>
      <el-table-column label="品牌图标" prop="logo" #default="scope">
        <img :src="scope.row.logo" width="50"/>
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间"/>
      <el-table-column
          label="操作"
          align="center"
          class-name="small-padding fixed-width"
      >
        <template #default="scope">
          <el-button
              link
              type="primary"
              icon="Edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['product:brand:edit']"
          >修改
          </el-button
          >
          <el-button
              link
              type="primary"
              icon="Delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['product:brand:delete']"
          >删除
          </el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页条组件 -->
    <pagination
        v-show="total > 0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改分类品牌对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="brandRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="品牌名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入品牌名称"/>
        </el-form-item>
        <el-form-item label="品牌图标" prop="logo">
          <el-upload
              class="avatar-uploader"
              :action="imgUpload.url"
              :headers="imgUpload.headers"
              :show-file-list="false"
              :on-success="handleAvatarSuccess"
          >
            <img v-if="form.logo" :src="form.logo" class="avatar"/>
            <el-icon v-else class="avatar-uploader-icon">
              <Plus/>
            </el-icon>
          </el-upload>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Brand">
//引入api接口
import {
  listBrand,
  addBrand,
  getBrand,
  updateBrand,
  delBrand,
} from "@/api/product/brand";
import {getToken} from "@/utils/auth.js";
import {ElMessage, ElMessageBox} from "element-plus";

//定义分页列表数据模型
const brandList = ref([]);
//定义列表总记录数模型
const total = ref(0);
//加载数据时显示的动效控制模型
const loading = ref(true);
//新增与修改弹出层控制模型
const open = ref(false);
//新增与修改弹出层标题模型
const title = ref("");
//定义批量操作id列表模型
const ids = ref([]);
//定义单选控制模型
const single = ref(true);
//定义多选控制模型
const multiple = ref(true);
const {proxy} = getCurrentInstance();
//定义隐藏搜索控制模型
const showSearch = ref(true);

//Vue 3 中的两种响应式数据绑定方式：reactive 和 ref
//ref定义：基本数据类型，适用于简单的响应式数据
//reactive定义：对象（或数组）数据类型，则适用于复杂对象或数组的响应式数据
const data = reactive({
  //定义搜索模型
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
  },
  form: {},
  imgUpload: {
    // 设置上传的请求头部
    headers: {
      Authorization: "Bearer " + getToken(),
    },
    // 图片上传的方法地址:
    url: import.meta.env.VITE_APP_BASE_API + "/file/upload",
  },
  rules: {
    name: [
      {
        required: true,
        message: "品牌名称不能为空",
        trigger: "blur",
      },
    ],
    logo: [
      {
        required: true,
        message: "品牌logo不能为空",
        trigger: "blur",
      },
    ],
  },
});
//toRefs 是一个Vue3中提供的API，可将一个响应式对象转换为普通对象，其中属性变成了对原始对象属性的引用
const {queryParams, form, imgUpload, rules} = toRefs(data);

/** 查询品牌列表 */
function getList() {
  loading.value = true;
  listBrand(queryParams.value).then((response) => {
    brandList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

/** 搜索按钮操作 */
function handleQuery() {
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    name: null,
    logo: null,
  };
  proxy.resetForm("brandRef");
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加品牌";
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 修改按钮操作
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value;
  getBrand(_id).then((response) => {
    form.value = response.data;
    open.value = true;
    title.value = "修改品牌";
  });
}

// 提交按钮
function submitForm() {
  proxy.$refs["brandRef"].validate((valid) => {
    if (valid) {
      if (form.value.id != null) {
        updateBrand(form.value).then((response) => {
          ElMessage.success("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addBrand(form.value).then((response) => {
          ElMessage.success("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

//上传
function handleAvatarSuccess(response, uploadFile) {
  console.log(response);
  console.log(uploadFile);
  form.value.logo = response.data.url;
}

// 删除按钮操作
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal
      .confirm('是否确认删除分类品牌编号为"' + _ids + '"的数据项？')
      .then(function () {
        return delBrand(_ids);
      })
      .then(() => {
        getList();
        proxy.$modal.msgSuccess("删除成功");
      })
      .catch(() => {
      });
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

//执行查询品牌列表
getList();
</script>
<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>